Michael kue



TA'IES NITED FFIG PATENT COMPOSITION FOR FILLING WOOD.

SPECIFICATION forming part of Letters Patent No. 302,742, dated July 29, 1884.

Application filed April 29, 1884. (Specimens) Patented in Germany June 24, 1883, No. 26,424; in Belgium February 4, 1884,

No. 46,881; in France February 13, 1884, N0.147,808, and in Austria-Hungary March 3, 1884.

To all whom it may concern:

Be it known that I, MIcI-IAEL KUNZ, of Oberhausen-Augsburg, in the Empire of Germany, have invented certain new and useful Improvements in Wood-Filling Compositions, (for which Letters Patent have been granted to me heretofore by the following governments: Germany, No. 26,424., dated June 24, 1883;

France, No. 147,808, dated February 13,1884,

7 are combined in the proportions stated,to wit:

finely-ground glue, four parts; alcohol, five parts; benzine or oil of turpentine, one part,-

and a trace of red aniline or other color.

The composition is prepared by dissolving the finely-ground glue in alcohol in a vessel placed into a hot-Water bath. WVhen the glue is dissolved, the benzine or oil of turpentine and the aniline or other color are added. The

alcoholic solution of glue is quickly taken up by the wood, and prevents the wood changing color after polishing, which is the case when glue is used which has been dissolved in water. After the pores are filled by rubbing in the composition, the wood is allowed to dry. The

surface is then ground off carefully with felt and pumice-stone and a suitable grinding composition, after which the wood is ready for being polished.

By the use of my improved filling composition the time and labor required for polishing the surfaces are considerably reduced, the pores of the wood closed and prevented from sweating, and, after polishing, a higher finish obtained.

I am aware that a mixture of sulphur with alcohol or with an alcoholic varnish has been used heretofore. I am also aware that the same ingredients used by me have been used in combination withother ingredients as a sizing or wash to be used for applying dry colors for painting purposes. The compounds referred to I do not claim, as they are esseir tially different from my wood-filling compo- 

